The IPCC report, the first since 2007, is being treated as infallible even before it is out. On the contrary, it is a scientific review of the literature of the last six years and at least one of its authors has protested against it being treated like a religious tract offering certainties. Meanwhile, the 195 countries which back the IPCC have filed 1,800 questions concerning the report. Since the quest for truth is illusory, governments should decide on green taxes and subsidies according to their political inclinations, using climate science reports only as rough guides, not as justifications of scriptural force.